Sections View Full Chapter Figures Tables Videos Annotate Full Chapter Figures Tables Videos Supplementary Content +++ Anatomy of the Lumbopelvic Spine +++ Superior View ++ +++ Lateral View ++ +++ Anterior View ++ +++ Posterior View ++ +++ Physiologic (Osteokinematic) Motions of Lumbopelvic Spine +++ Operant Definitions ++ Iliosacral (I/S) motion: Motion of ilium in reference to sacrum Sacroilial (S/I) motion: Motion of sacrum in reference to ilium Reference for lumbar motion is superior vertebra of motion segment Reference for I/S motion is ASIS Reference for S/I motion is anterior base of sacrum I/S anterior/posterior ROT (tilt): Motion of ASIS anterior/inferior & posterior/superior in sagittal plane I/S inflare/outflare: Motion of ASIS medially & laterally in transverse plane I/S upslip/downslip: Motion of ASIS superiorly & inferiorly in frontal plane S/I flexion/extension (nutation/counternutation): Motion of sacral base anterior & posterior in sagittal plane S/I SB: Motion of sacral base in frontal plane S/I ROT: Motion of sacral base in transverse plane S/I forward/backward torsion: Triplanar motion of sacral sulcus anteriorly & posteriorly about an oblique axis +++ Coupled/Combined Motion ++ Lumbar SB & ROT occur contralaterally in neutral Lumbar SB & ROT occur ipsilaterally out of neutral Hip motion coupled with ilial (I/S) motion Lumbar motion coupled with sacral (S/I) motion Lumbar segmental maximal facet opening (R) occurs with FB, SB (L), ROT (R) Lumbar segmental maximal facet closing (R) occurs with BB, SB (R), ROT (L) +++ Coupled Joint Motions ++ Table Graphic Jump Location|Download (.pdf)|Print Motion Innominate (I/S) Sacrum (S/I) Hip flex Ipsilateral posterior ROT Ø Hip ext Ipsilateral anterior ROT Ø Hip IR Ipsilateral inflare Ø Hip ER Ipsilateral outflare Ø Lumbar FB Anterior ROT Ext, then flex Lumbar BB Posterior ROT Flex, then ext Lumbar ROT Ipsilateral posterior ROT & contralateral anterior ROT Ipsilateral ROT Lumbar SB Ipsilateral anterior ROT & contralateral posterior ROT Ipsilateral SB +++ Physiologic (Osteokinematic) Motions of the Lumbopelvic Spine ++ Table Graphic Jump Location|Download (.pdf)|Print Joint Normal ROM OPP CPP Normal End Feel(s) Capsular Pattern Lumbar FB = 40°–60° BB = 20°–35° SB = 15°–20° ROT = 3°–18° FB, contralateral SB, & ipsilateral ROT BB, ipsilateral SB, & contralateral ROT Elastic Limited in FB, contralateral SB, & ipsilateral ROT S/I & I/S Angular motion = 3°–20° Translatory motion = 0.5–8.0 mm Triplanar 5°–8° Max hip ER Max hip IR +++ Accessory (Arthrokinematic) Motions of the Lumbopelvic Spine ++ Table Graphic Jump Location|Download (.pdf)|Print Arthrology Arthrokinematics Lumbar Primarily sagittal plane orientation with superior facets of inferior vertebra facing medially & inferior facets of superior vertebra facing laterally FB Inferior facet of superior vertebra glides up & forward on superior facet of ... Your Access profile is currently affiliated with '[InstitutionA]' and is in the process of switching affiliations to '[InstitutionB]'. Please click ‘Continue’ to continue the affiliation switch, otherwise click ‘Cancel’ to cancel signing in. Get Free Access Through Your Institution Learn how to see if your library subscribes to McGraw Hill Medical products. Subscribe: Institutional or Individual Sign In Username Error: Please enter User Name Password Error: Please enter Password Forgot Password? Forgot Username? Sign in via OpenAthens Sign in via Shibboleth